Home / 26,648.81-36,778.07-15,318.78

Finding the Fourth Proportional to 26,648.81, 36,778.07 and 15,318.78

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Solution

The fourth proportional to 26,648.81, 36,778.07 and 15,318.78 is: 21,141.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,648.81 : 36,778.07 = 15,318.78 : x
  2. Step 2: Convert to fraction form
    26,648.81/36,778.07 = 15,318.78/x
  3. Step 3: Cross multiply
    26,648.81x = 36,778.07 × 15,318.78
  4. Step 4: Simplify right side
    26,648.81x = 563,395,224.48
  5. Step 5: Solve for x
    x = 563,395,224.48/26,648.81
  6. Step 6: Final answer
    x = 21,141.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.